CN112615482B - Self-heat-dissipation energy-saving fan - Google Patents
Self-heat-dissipation energy-saving fan Download PDFInfo
- Publication number
- CN112615482B CN112615482B CN202110073076.7A CN202110073076A CN112615482B CN 112615482 B CN112615482 B CN 112615482B CN 202110073076 A CN202110073076 A CN 202110073076A CN 112615482 B CN112615482 B CN 112615482B
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- China
- Prior art keywords
- output shaft
- fan blade
- rotating
- motor
- bimetal composite
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a self-heat-dissipation energy-saving fan, which comprises an air duct, wherein an isolation shell is arranged in the air duct, a motor is arranged in the isolation shell, one end of an output shaft of the motor penetrates into the air duct from the isolation shell and is provided with a main fan blade, a ventilation channel communicated with the outside of the air duct is arranged on the isolation shell, a volute is arranged in the ventilation channel and is communicated with an air inlet and an air outlet of the volute, a rotating shaft is rotationally arranged in the volute, a centrifugal fan blade is arranged on the rotating shaft, a plurality of matching grooves are formed in the centrifugal fan blade around a rotating center, the output shaft of the motor is coaxial with the rotating shaft, a rotating disc is arranged on the output shaft, and a plurality of bimetal composite rods are arranged on the rotating disc around the rotating center; along with the motor intensification, bimetal composite rod is crooked towards the cooperation groove side, and during the intensification reached bimetal composite rod shape and become to stretch into the cooperation groove, output shaft and centrifugal fan blade transmission. The self-cooling fan can effectively save unnecessary energy consumption and save more energy when in use.
Description
Technical Field
The invention belongs to the technical field of fans, and particularly relates to a self-radiating energy-saving fan.
Background
Fans are mechanical equipment which is used for driving fan blades to rotate by means of a motor so as to enable gas to flow, and the fans are widely applied to ventilation and dust exhaust of factories, mines, tunnels, cooling towers, vehicles, ships and buildings. The fan generally includes the dryer, motor and main fan blade, the gas temperature that some fans carried is higher, directly install the motor inside the dryer, can lead to the high temperature of motor, consequently install the motor in with the dryer isolated, in the passageway with outside cold air intercommunication, afterbody at the motor shaft still is equipped with an auxiliary fan blade, when rotating the air supply of drive main fan blade rotation through the motor, drive auxiliary fan blade and rotate, rotate through driving auxiliary fan blade and make the continuous motor outside and the motor heat transfer that passes of outside cold air, thereby make the maintenance of motor at a lower temperature, prevent that the motor is impaired.
However, the auxiliary fan blade and the motor shaft in the prior art are always in a transmission state, no matter the motor is in a high-temperature state or a low-temperature state, for example, when the temperature is low in winter, the temperature of the motor is not high, but the motor always applies work to the auxiliary fan blade, so that the overall energy consumption of the fan is increased, and the energy conservation is not facilitated.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the self-radiating energy-saving fan which can not be driven by the auxiliary fan blade when the temperature of the motor is lower than the set temperature and can be automatically driven by the auxiliary fan blade when the temperature reaches the set temperature, thereby effectively saving unnecessary energy consumption and saving more energy when in use.
In order to solve the technical problem, the invention is solved by the following technical scheme: a self-heat-dissipation energy-saving fan comprises an air duct, wherein an isolation shell is arranged in the air duct, a motor is arranged in the isolation shell, one end of an output shaft of the motor penetrates into the air duct from the isolation shell and is provided with a main fan blade, a ventilation channel communicated with the outside of the air duct is arranged on the isolation shell, a volute is arranged in the ventilation channel and is communicated with an air inlet and an air outlet of the volute, a rotating shaft is arranged in the volute in a rotating mode, a centrifugal fan blade is arranged on the rotating shaft and is provided with a plurality of matching grooves around a rotating center, the output shaft of the motor is coaxial with the rotating shaft, a rotating disc is arranged on the output shaft, and a plurality of bimetal composite rods are arranged on the rotating disc around the rotating center; along with the motor heats up, the bimetal composite rod bends towards the side of the matching groove, the temperature rises until the bimetal composite rod deforms and extends into the matching groove, and the output shaft is in transmission with the centrifugal fan blade. This kind of from cooling fan is when the operation, the output shaft of motor is to the bimetal composite rod heat transfer on rolling disc and the rolling disc, bimetal composite rod breaks away from with the cooperation groove originally, the output shaft can not drive centrifugal fan blade and rotate, along with the motor intensifies, bimetal composite rod is crooked towards cooperation groove side, it becomes to stretch into the cooperation groove to heat up to bimetal composite rod, the output shaft carries out rapid cooling with the transmission of centrifugal fan blade, promptly when reacing a certain temperature of setting for, bimetal composite rod stretches into the cooperation groove can make the output shaft drive centrifugal fan blade and rotate, and when being less than this temperature, centrifugal fan blade does not rotate, effectively save unnecessary energy consumption, use more energy-conservation.
In the above technical solution, preferably, the rotating shaft is connected to the volute casing through a bearing. The structure is adopted to reduce the friction loss between the rotating shaft and the volute.
In the above technical scheme, preferably, the plurality of bimetal composite rods are diffused in a horn shape in the direction towards the centrifugal fan blade, the rotating disc is slidably arranged on the output shaft and fixed on the output shaft by bolts, and the position of the rotating disc on the output shaft is adjusted to change the temperature of the bimetal composite rods when the bimetal composite rods extend into the matching grooves. Adopt this structure can adjust the distance between bimetal composite rod and the cooperation groove through adjusting the position of rolling disc on the output shaft, the approximate deformation state similar rotation of bimetal rod when being heated, when being close to the cooperation groove more, the temperature that bimetal composite rod inserted the cooperation groove is lower more to can adjust centrifugal fan pivoted temperature as required.
In the above technical solution, preferably, the output shaft is marked with a plurality of positioning scale marks, and the output shaft is marked with an indication temperature of each scale mark; when the indicating temperature indicates that the rotating disc is located at the position, the bimetal composite rod is deformed to extend into the matching groove under the temperature condition of indicating temperature. Adopt this structure can instruct the temperature, the position of convenience of customers regulation and location rolling disc.
Compared with the prior art, the invention has the following beneficial effects: this kind of from cooling fan is when the operation, the output shaft of motor is to the bimetal composite rod heat transfer on rolling disc and the rolling disc, bimetal composite rod breaks away from with the cooperation groove originally, the output shaft can not drive centrifugal fan blade and rotate, along with the motor intensifies, bimetal composite rod is crooked towards cooperation groove side, it becomes to stretch into the cooperation groove to heat up to bimetal composite rod, the output shaft carries out rapid cooling with the transmission of centrifugal fan blade, promptly when reacing a certain temperature of setting for, bimetal composite rod stretches into the cooperation groove can make the output shaft drive centrifugal fan blade and rotate, and when being less than this temperature, centrifugal fan blade does not rotate, effectively save unnecessary energy consumption, use more energy-conservation.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a centrifugal fan blade installed in a volute in the embodiment of the present invention.
Fig. 3 is an enlarged view of a first position of the rotating disk on the output shaft according to the embodiment of the present invention.
Fig. 4 is a partially enlarged view of the second fixed position of the rotating disk on the output shaft according to the embodiment of the present invention.
Fig. 5 is a partially enlarged view of the bimetal composite rod of the embodiment of the present invention when deformed to extend into the mating groove.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 5, a self-heat-dissipation energy-saving fan comprises an air duct 1, wherein an isolation casing 2 is arranged in the air duct 1, a motor 3 is arranged in the isolation casing 2, one end of an output shaft of the motor 3 penetrates into the air duct 1 from the isolation casing 2 and is provided with a main fan blade 4, a ventilation channel 5 communicated with the outside of the air duct 1 is arranged on the isolation casing 2, a volute 6 is arranged in the ventilation channel 5, the ventilation channel 5 is communicated with an air inlet 61 and an air outlet 62 of the volute 6, a rotating shaft 7 is rotatably arranged in the volute 6, a centrifugal fan blade 8 is arranged on the rotating shaft 7, a plurality of matching grooves 81 are formed in the rotating center of the centrifugal fan blade 8, an output shaft 31 of the motor 3 is coaxial with the rotating shaft 7, a rotating disc 9 is arranged on the output shaft 31, and a plurality of bimetal composite rods 10 are arranged on the rotating disc 9; along with the temperature rise of the motor 3, the bimetal composite rod 10 bends towards the matching groove 81 side, the temperature rises until the bimetal composite rod 10 deforms and extends into the matching groove 81, and the output shaft 31 is in transmission with the centrifugal fan blade 8. The bimetal composite rod 10 is a hard rod formed by compounding two metals, and the expansion coefficients of the two metals are different during the temperature rising process, so that the bimetal composite rod bends to the side with the slow expansion speed, such as copper and iron compounding. When the self-cooling fan runs, the output shaft 31 of the motor 3 transfers heat to the rotating disc 9 and the bimetal composite rod 10 on the rotating disc 9, the bimetal composite rod 10 is separated from the matching groove 81 at first, the output shaft 31 cannot drive the centrifugal fan blade 8 to rotate, the bimetal composite rod 10 bends towards the matching groove 81 along with the temperature rise of the motor 3, the temperature rises until the bimetal composite rod 10 deforms and extends into the matching groove 81, the output shaft 31 and the centrifugal fan blade 8 are driven to carry out rapid cooling, namely, when a certain set temperature is reached, the bimetal composite rod 10 extends into the matching groove 81, the output shaft 31 can drive the centrifugal fan blade 8 to rotate, and when the temperature is lower than the set temperature, the centrifugal fan blade 8 does not rotate, unnecessary energy consumption is effectively saved, and more energy is saved during use.
In order to reduce the friction loss between the rotating shaft 7 and the volute 6, the rotating shaft 7 and the volute 6 are connected through a bearing 11.
In this embodiment, the bimetal composite rods 10 are flared toward the centrifugal fan blade 8, the rotating disc 9 is slidably disposed on the output shaft 31 and fixed on the output shaft 31 by the bolts 12, and the position of the rotating disc 9 on the output shaft 31 is adjusted to change the temperature of the bimetal composite rods 10 when the bimetal composite rods 10 extend into the matching grooves 81. By adopting the structure, the distance between the bimetal composite rod 10 and the matching groove 81 can be adjusted by adjusting the position of the rotating disc 9 on the output shaft 31, the approximate deformation state of the bimetal rod 10 when being heated is similar to rotation, and the closer to the matching groove 81, the lower the temperature of the bimetal composite rod 10 inserted into the matching groove 81 is, so that the rotating temperature of the centrifugal fan 8 can be adjusted according to the requirement.
In this embodiment, the output shaft 31 is marked with a plurality of positioning scale marks 32, and the output shaft is marked with the indication temperature of each scale mark 32; when the temperature indicating rotary disk 9 is located at this position, the bimetal composite rod 10 is deformed to extend into the fitting groove 81 under the temperature condition of the temperature indication. Adopt this structure can instruct the temperature, the position of convenience of customers regulation and location rolling disc.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (3)
1. The utility model provides a from energy-conserving fan of heat dissipation, includes dryer (1), be provided with in dryer (1) and keep apart casing (2), it is provided with motor (3) in casing (2) to keep apart, the output shaft one end of motor (3) is followed keep apart casing (2) and penetrate in dryer (1) and be provided with main fan blade (4), it is provided with outside ventilation duct (5) of intercommunication dryer (1) on casing (2), its characterized in that to keep apart: a volute (6) is arranged in the ventilation channel (5), the ventilation channel (5) is communicated with an air inlet (61) and an air outlet (62) of the volute (6), a rotating shaft (7) is arranged in the volute (6) in a rotating mode, a centrifugal fan blade (8) is arranged on the rotating shaft (7), a plurality of matching grooves (81) are formed in the centrifugal fan blade (8) in a rotating center, an output shaft (31) of the motor (3) is coaxial with the rotating shaft (7), a rotating disc (9) is arranged on the output shaft (31), and a plurality of bimetal composite rods (10) are arranged on the rotating disc (9) in the rotating center; along with motor (3) intensifies, bimetal composite rod (10) orientation cooperation groove (81) lateral bending heats up to bimetal composite rod (10) deformation stretches into in cooperation groove (81), output shaft (31) with centrifugal fan blade (8) transmission, it is a plurality of bimetal composite rod (10) to centrifugal fan blade (8) direction is the diffusion of loudspeaker form, rolling disc (9) slide set up in on output shaft (31) to fix by bolt (12) on output shaft (31), adjust rolling disc (9) are in position on output shaft (31) is in order to change bimetal composite rod (10) stretch into temperature when cooperation groove (81).
2. The self-heat-dissipation energy-saving fan as claimed in claim 1, wherein: the rotating shaft (7) is connected with the volute (6) through a bearing (11).
3. The self-heat-dissipation energy-saving fan as claimed in claim 1, wherein: the output shaft (31) is marked with a plurality of positioning scale marks (32), and the output shaft is marked with the indication temperature of each scale mark (32); when the indicating temperature indicates that the rotating disc (9) is located at the position, the bimetal composite rod (10) deforms and extends into the matching groove (81) under the temperature condition of indicating temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110073076.7A CN112615482B (en) | 2021-01-20 | 2021-01-20 | Self-heat-dissipation energy-saving fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110073076.7A CN112615482B (en) | 2021-01-20 | 2021-01-20 | Self-heat-dissipation energy-saving fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112615482A CN112615482A (en) | 2021-04-06 |
| CN112615482B true CN112615482B (en) | 2021-12-21 |
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ID=75254605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110073076.7A Active CN112615482B (en) | 2021-01-20 | 2021-01-20 | Self-heat-dissipation energy-saving fan |
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| Country | Link |
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| CN (1) | CN112615482B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545450A (en) * | 2016-02-19 | 2016-05-04 | 太仓钰丰机械工程有限公司 | Fan clutch with cooling and temperature controlling functions |
| CN210799513U (en) * | 2019-09-29 | 2020-06-19 | 绍兴上虞通风机有限公司 | Motor isolation cooling type fan |
| CN111608940B (en) * | 2020-05-25 | 2021-05-14 | 浙江上建风机有限公司 | Centrifugal fan blade and automatic overheat-proof axial flow fan of motor |
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2021
- 2021-01-20 CN CN202110073076.7A patent/CN112615482B/en active Active
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| Publication number | Publication date |
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| CN112615482A (en) | 2021-04-06 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20211206 Address after: 250000 high tech park, Shengjing street, Zhangqiu District, Jinan City, Shandong Province Applicant after: JINAN SHENHUA REFRIGERATION EQUIPMENT Co.,Ltd. Address before: 312369 66 East Village Central Road, Beizhen Town, Shangyu District, Shaoxing, Zhejiang Applicant before: Ma Jianshan |
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